- Medicare in Williamsville, NY

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is a medicare enrolled "Ophthalmology" provider in Williamsville, New York. Their current practice location is 40 N Union Rd, Niswander Eye Center, Williamsville, New York. You can reach out to their office (for appointments etc.) via phone at (716) 634-4441.

is licensed to practice in New York (license number 142714) and it also participates in the medicare program. is enrolled with medicare and should accept medicare assignments and since they are enrolled in medicare, they may order Medicare Part D Prescription drugs, if eligible. The facility's NPI Number is 1144284043.

Contact Information

40 N Union Rd, Niswander Eye Center,
Williamsville, NY 14221-5339
(716) 634-4441
(716) 634-3174

Map and Direction




Healthcare Provider's Profile

Full Name
TypeFacility
SpecialityOphthalmology
Location40 N Union Rd, Williamsville, New York
Accepts Medicare AssignmentsMedicare enrolled and accepts medicare insurance. Providers at this facility may prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1144284043
  • Provider Enumeration Date: 04/17/2006
  • Last Update Date: 07/22/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 2860880226
  • Enrollment ID: O20211104000410

Medical Identifiers

Medical identifiers for such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1144284043NPI-NPPES
01632920MedicaidNY
390088001OtherNYBLUE CROSS GROUP NUMBER

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
152W00000XOptometrist VUT005781-1 (New York)Secondary
207W00000XOphthalmology 142714 (New York)Primary
332H00000XEyewear Supplier (* (Not Available))Secondary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. acts as a billing entity for following providers:
Provider NamePhilip R Niswander
Provider TypePractitioner - Ophthalmology
Provider IdentifiersNPI Number: 1306844550
PECOS PAC ID: 8921070046
Enrollment ID: I20100831000438
Provider NameMary Ellen Loughrey
Provider TypePractitioner - Optometry
Provider IdentifiersNPI Number: 1801894068
PECOS PAC ID: 0244415198
Enrollment ID: I20110419000982
Provider NameEllen C Fitzgerald-farkas
Provider TypePractitioner - Ophthalmology
Provider IdentifiersNPI Number: 1215192638
PECOS PAC ID: 8820267669
Enrollment ID: I20110811000434

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address

40 N Union Rd,
Williamsville, NY 14221-5339

Ph: () -
40 N Union Rd, Niswander Eye Center,
Williamsville, NY 14221-5339

Ph: (716) 634-4441

Reviews and Comments



Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.